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Apache-2.0Updated on Nov 10, 2026333GitHub stars

A Vercel plugin skill for adding sign-in to apps hosted on Vercel.

What the skill teaches

A Vercel plugin skill for adding sign-in to apps hosted on Vercel. It covers Clerk through the Vercel Marketplace with automatic environment variables, self-hosted Better Auth backed by a Marketplace Postgres database, Descope and Auth0, as well as identity features Vercel runs itself: Sign in with Vercel, Passport for enterprise deployments, and KMS signing keys. Examples target Next.js 16, where request interception lives in proxy.ts, with notes for older versions. It includes a decision table between providers, notes on Clerk's March 2026 breaking changes and links to each provider's documentation.

Capabilities

  • Add Clerk, Better Auth, Descope or Auth0 sign-in to a Next.js app
  • Provision auth providers through the Vercel Marketplace
  • Protect routes with proxy.ts patterns
  • Choose between Vercel's own identity features